From: Bart Van Assche <bvanassche@xxxxxxx> [ Upstream commit 78bc671bd1501e2f6c571e063301a4fdc5db53b2 ] Replace UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS with ufs_hba_variant_ops::set_dma_mask. Update the Renesas driver accordingly. This patch enables supporting other configurations than 32-bit or 64-bit DMA addresses, e.g. 36-bit DMA addresses. Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx> Link: https://lore.kernel.org/r/20241018194753.775074-1-bvanassche@xxxxxxx Reviewed-by: Avri Altman <Avri.Altman@xxxxxxx> Reviewed-by: Peter Wang <peter.wang@xxxxxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/ufs/core/ufshcd.c | 4 ++-- drivers/ufs/host/ufs-renesas.c | 9 ++++++++- include/ufs/ufshcd.h | 9 +++------ 3 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index db4044358e22d..62fbbd56a86e8 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2265,8 +2265,6 @@ static inline int ufshcd_hba_capabilities(struct ufs_hba *hba) int err; hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); - if (hba->quirks & UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) - hba->capabilities &= ~MASK_64_ADDRESSING_SUPPORT; /* nutrs and nutmrs are 0 based values */ hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS) + 1; @@ -10206,6 +10204,8 @@ EXPORT_SYMBOL_GPL(ufshcd_dealloc_host); */ static int ufshcd_set_dma_mask(struct ufs_hba *hba) { + if (hba->vops && hba->vops->set_dma_mask) + return hba->vops->set_dma_mask(hba); if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) return 0; diff --git a/drivers/ufs/host/ufs-renesas.c b/drivers/ufs/host/ufs-renesas.c index cc94970b86c93..ea3da773b1c14 100644 --- a/drivers/ufs/host/ufs-renesas.c +++ b/drivers/ufs/host/ufs-renesas.c @@ -7,6 +7,7 @@ #include <linux/clk.h> #include <linux/delay.h> +#include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/iopoll.h> #include <linux/kernel.h> @@ -364,14 +365,20 @@ static int ufs_renesas_init(struct ufs_hba *hba) return -ENOMEM; ufshcd_set_variant(hba, priv); - hba->quirks |= UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS | UFSHCD_QUIRK_HIBERN_FASTAUTO; + hba->quirks |= UFSHCD_QUIRK_HIBERN_FASTAUTO; return 0; } +static int ufs_renesas_set_dma_mask(struct ufs_hba *hba) +{ + return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); +} + static const struct ufs_hba_variant_ops ufs_renesas_vops = { .name = "renesas", .init = ufs_renesas_init, + .set_dma_mask = ufs_renesas_set_dma_mask, .setup_clocks = ufs_renesas_setup_clocks, .hce_enable_notify = ufs_renesas_hce_enable_notify, .dbg_register_dump = ufs_renesas_dbg_register_dump, diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 2a7d6f269d9e3..8b66228645d76 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -295,6 +295,8 @@ struct ufs_pwr_mode_info { * @name: variant name * @init: called when the driver is initialized * @exit: called to cleanup everything done in init + * @set_dma_mask: For setting another DMA mask than indicated by the 64AS + * capability bit. * @get_ufs_hci_version: called to get UFS HCI version * @clk_scale_notify: notifies that clks are scaled up/down * @setup_clocks: called before touching any of the controller registers @@ -332,6 +334,7 @@ struct ufs_hba_variant_ops { int (*init)(struct ufs_hba *); void (*exit)(struct ufs_hba *); u32 (*get_ufs_hci_version)(struct ufs_hba *); + int (*set_dma_mask)(struct ufs_hba *); int (*clk_scale_notify)(struct ufs_hba *, bool, enum ufs_notify_change_status); int (*setup_clocks)(struct ufs_hba *, bool, @@ -613,12 +616,6 @@ enum ufshcd_quirks { */ UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16, - /* - * This quirk needs to be enabled if the host controller has - * 64-bit addressing supported capability but it doesn't work. - */ - UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS = 1 << 17, - /* * This quirk needs to be enabled if the host controller has * auto-hibernate capability but it's FASTAUTO only. -- 2.43.0
